Drilling tool



4. Drilling tool

4:1 Perspective

4.2 : Front

4.3 : Back

4.4 : Right

4.5 : Left

4.6 : Top

4.7 : Bottom

4.8 : Enlarged

4.9 : Partial enlarged view of broken line rectangle in fig. 4.2

With the exception of the broken line rectangle in figure 4.2 which illustrates a partial enlarged view, the broken lines in the reproduction illustrate portions of the drill bit that form no part of the claimed designs; the dot-chain lines illustrate a border of the claimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a drilling tool, as shown and described. 